/* Full Stack HQ: the sign-in and set-up pages (public, so self-contained: only this file and the fonts).
   A mountain lake under the Milky Way (Zetong Li, Unsplash aCusqffy5sY, free license: this page is public, so no
   Apple photos, the owner 2026-09-24), lightly frosted (web/img/login-bg.jpg: mean 40, 95th pct 101) behind a glass card.
   The Apple one it replaced is kept as web/img/login-bg-yosemite2-apple.jpg.
   Big fields, one big button. Messages in gold, never red (protanopia). */
:root {
  --ink: #f4f6fb;
  --ink-2: #bcc3d6;
  --ink-3: #8e97ad;
  --line: rgba(255, 255, 255, 0.16);
  --accent: #8b5cff;
  --accent-2: #4f7dff;
  --warn: #ffd76a;
  --display: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body.lg {
  display: grid;
  place-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 1.5rem 1rem;
  background: #05060b url("../img/login-bg.jpg") center / cover no-repeat fixed;
  color: var(--ink);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.45;
}
.lg-card {
  width: min(28rem, 100%);
  padding: clamp(1.6rem, 4vw, 2.4rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10, 12, 20, 0.72);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.lg-card.lg-wide { width: min(46rem, 100%); }
.lg-brand { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1.6rem; }
.lg-logo { display: block; width: 4.2rem; height: auto; }
.lg-brand-t { display: flex; align-items: baseline; gap: 0.5rem; line-height: 1; } /* FULL STACK HQ on one line (the owner 2026-09-24) */
.lg-brand-k { font-size: 1.05rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.lg-brand-hq { font-size: 1.05rem; font-weight: 700; letter-spacing: 0.08em; color: var(--ink-2); }
.lg-title { margin: 0 0 1.2rem; font-size: clamp(2rem, 5vw, 2.6rem); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }
.lg-lead { margin: -0.4rem 0 1.2rem; font-size: 1.05rem; color: var(--ink-2); }
.lg-form { display: grid; gap: 0.9rem; }
.lg-field { display: grid; gap: 0.35rem; }
.lg-field[hidden] { display: none; }
.lg-k { font-size: 0.9rem; font-weight: 600; color: var(--ink-2); }
.lg-field input {
  width: 100%;
  height: 3.2rem;
  padding: 0 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(5, 6, 11, 0.55);
  color: var(--ink);
  font: inherit;
  font-size: 1.12rem;
}
.lg-field input:focus { border-color: rgba(255, 255, 255, 0.5); outline: 3px solid rgba(139, 92, 255, 0.55); outline-offset: 1px; }
.lg-code { font-family: var(--mono) !important; font-size: 1.6rem !important; letter-spacing: 0.5em; text-align: center; }
.lg-rec { font-family: var(--mono) !important; letter-spacing: 0.12em; }
.lg-msg { min-height: 1.4em; margin: 0; font-size: 1rem; font-weight: 600; color: var(--warn); }
.lg-msg:empty { min-height: 0; }
.lg-msg.lg-big { font-size: 1.2rem; }
.lg-go {
  display: grid;
  place-items: center;
  height: 3.4rem;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #ffffff;
  font: inherit;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.lg-go:hover { filter: brightness(1.08); }
.lg-go:disabled, .lg-go.is-off { opacity: 0.5; cursor: default; filter: none; }
.lg-link { justify-self: start; padding: 0.2rem 0; border: 0; background: none; color: var(--ink-2); font: inherit; font-size: 0.95rem; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.lg-link:hover { color: var(--ink); }
.lg-ghost { padding: 0.7rem 1.1rem; border: 1px solid var(--line); border-radius: 10px; background: none; color: var(--ink); font: inherit; font-weight: 600; cursor: pointer; }
.lg-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1rem; margin: 1.6rem 0 0; font-size: 0.9rem; color: var(--ink-3); }
.lg-go:focus-visible, .lg-link:focus-visible, .lg-ghost:focus-visible { outline: 3px solid #ffd23f; outline-offset: 3px; }
/* the sign-in, redesigned (the owner 2026-09-25: "night street": our 3D street at night behind one glass panel, big
   type; password first, then the code on its own step as six boxes, only when the account needs it) */
body.lg-night { background: #04050a url("../img/signin-night.jpg") center / cover no-repeat fixed; }
body.lg-night::before { content: ""; position: fixed; inset: 0; background: radial-gradient(ellipse at center, rgba(4, 5, 10, 0.12) 30%, rgba(4, 5, 10, 0.6)); pointer-events: none; }
.lg-night .lg-card { position: relative; width: min(31rem, 100%); padding: clamp(1.8rem, 4.5vw, 2.8rem); border-radius: 20px; background: rgba(8, 10, 20, 0.66); }
.lg-night .lg-title { margin-bottom: 1.4rem; font-size: clamp(2.4rem, 6vw, 3.2rem); }
.lg-night .lg-field input { height: 3.6rem; font-size: 1.2rem; }
.lg-night .lg-go { height: 3.7rem; font-size: 1.25rem; }
.lg-step { display: grid; gap: 1rem; }
.lg-step[hidden] { display: none; }
.lg-night .lg-lead { margin: -0.6rem 0 0.2rem; }
.lg-digits { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0.55rem; }
.lg-digits[hidden] { display: none; }
.lg-digit { width: 100%; height: 4.4rem; padding: 0; border: 1px solid var(--line); border-radius: 12px; background: rgba(5, 6, 11, 0.55); color: var(--ink); font-family: var(--mono); font-size: 2rem; font-weight: 600; text-align: center; caret-color: var(--accent); }
.lg-digit:focus { border-color: rgba(255, 255, 255, 0.55); outline: 3px solid rgba(139, 92, 255, 0.6); outline-offset: 1px; }
.lg-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.4rem 1rem; }
.lg-links[hidden] { display: none; }
@media (max-width: 420px) { .lg-digits { gap: 0.35rem; } .lg-digit { height: 3.6rem; font-size: 1.6rem; } }
/* set-up */
.en-step[hidden] { display: none; }
.en-qr-row { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 1.4rem; align-items: start; margin-bottom: 1.4rem; }
.en-qr { display: block; width: 220px; height: 220px; padding: 10px; border-radius: 12px; background: #ffffff; image-rendering: pixelated; }
.en-how p { margin: 0 0 0.6rem; font-size: 1.05rem; }
.en-n { display: grid; place-items: center; width: 2rem; height: 2rem; margin: 0 0 0.6rem; border-radius: 50%; background: rgba(255, 255, 255, 0.12); font-weight: 700; }
.en-small { font-size: 0.9rem !important; color: var(--ink-2); }
.en-secret { overflow-wrap: anywhere; padding: 0.6rem 0.8rem; border-radius: 8px; background: rgba(0, 0, 0, 0.35); font-family: var(--mono); font-size: 1.05rem; letter-spacing: 0.08em; }
.en-codes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem 1.5rem; margin: 0 0 1.2rem; padding: 1rem 1rem 1rem 2.4rem; border-radius: 12px; background: rgba(0, 0, 0, 0.35); font-family: var(--mono); font-size: 1.2rem; letter-spacing: 0.08em; }
.en-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1rem; }
.en-saved { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; font-size: 1.05rem; font-weight: 600; }
.en-saved input { width: 1.3rem; height: 1.3rem; }
@media (max-width: 560px) {
  .en-qr-row { grid-template-columns: minmax(0, 1fr); justify-items: center; }
  .en-codes { grid-template-columns: minmax(0, 1fr); }
}
@media print {
  body.lg { background: #ffffff; color: #000000; }
  .lg-card { border: 0; background: none; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .lg-brand, .lg-title, .lg-lead, .en-n, .en-actions, .en-saved, #en-done, .lg-foot { display: none; }
  .en-codes { background: none; color: #000000; }
}